Asteroseismic signatures of magnetic activity variations in solar-type stars

被引：0
|
作者：
Metcalfe, Travis S. [1 ,2 ]
机构：
[1] Space Sci Inst, Boulder, CO 80301 USA
[2] Aarhus Univ, Stellar Astrophys Ctr, DK-8000 Aarhus C, Denmark
来源：
PRECISION ASTEROSEISMOLOGY | 2014年 / 9卷 / 301期
关键词：
stars: activity; stars: interiors; stars: magnetic fields; stars: oscillations; P-MODES;
D O I：
10.1017/S1743921313014348
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Observations of magnetic activity cycles in other stars provide a broader context for our understanding of the 11-year sunspot cycle. The discovery of short activity cycles in a few stars, and the recognition of analogous variability in the Sun, suggest that there may be two distinct dynamos operating in different regions of the interior. Consequently, there is a natural link between studies of magnetic activity and asteroseismology, which can characterize some of the internal properties that are relevant to dynamos. I provide a brief historical overview of the connection between these two fields (including prescient work by Wojtek Dziembowski in 2007), and I highlight some exciting results that are beginning to emerge from the Kepler mission.
引用
收藏
页码：213 / 216
页数：4
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